Hi: You would only need to list them ALL for redundancy - if you only list one node in the data_source, then if that node dies for whatever reason then gmetad will not be able to collect data from that subcluster. So I guess having at least 2 nodes is good for a large subcluster.
I don't think anybody in their right mind would list all 1000 nodes in data_source ;-) Good luck. Cheers, Bernard > -----Original Message----- > From: Foster, Scott (MS) [mailto:[EMAIL PROTECTED] > Sent: Tuesday, November 02, 2004 10:49 > To: Bernard Li; Sean Dilda > Cc: [email protected] > Subject: RE: [Ganglia-general] Multiple clusters single gmetad > > Ah that makes sense. > > But if I'm running gmond on each node in the subcluster do I > need to specify each of them as datasources? I'm not sure > that makes sense especially if I have 1000 nodes each running > gmond. I know I'm missing something here and I appreciate > all your continued help. > > Scott > > -----Original Message----- > From: Bernard Li [mailto:[EMAIL PROTECTED] > Sent: Tuesday, November 02, 2004 10:09 AM > To: Foster, Scott (MS); Sean Dilda > Cc: [email protected] > Subject: RE: [Ganglia-general] Multiple clusters single gmetad > > > Hi Scott: > > The different ip addresses showing in gmetad.conf is not the > ip address of the server running gmetad but instead one of > the node (the headnode of that subgroup, if you may), which > runs gmond. > > Check the syntax of the data_source tag, the ip/hostname > listed there refers to one or all the nodes in that > subgroup/datasource. > > Cheers, > > Bernard > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of > > Foster, Scott (MS) > > Sent: Tuesday, November 02, 2004 9:14 > > To: Sean Dilda > > Cc: [email protected] > > Subject: RE: [Ganglia-general] Multiple clusters single gmetad > > > > How does that work with the gmetad having 3 different IP > addresses? > > My goal was to have one server running gmetad, rrd, and > apache. Do I > > have to have gmetad running on another system to break my > cluster into > > sub-clusters? > > > > Thanks for the earlier reply. I appreciate it. > > > > Scott > > > > -----Original Message----- > > From: Sean Dilda [mailto:[EMAIL PROTECTED] > > Sent: Monday, November 01, 2004 5:14 PM > > To: Foster, Scott (MS) > > Cc: [email protected] > > Subject: Re: [Ganglia-general] Multiple clusters single gmetad > > > > > > On Mon, 2004-11-01 at 17:47, Foster, Scott (MS) wrote: > > > I've successfully setup ganglia (thanks to everyone on this > > list), but now I want to try and break out our cluster into smaller > > sub clusters. > > > 1) Production Nodes > > > 2) Remote Nodes > > > 3) Test Nodes > > > > > > I'm trying to do all this with one server running gmetad > > for all the nodes in the cluster regardless of their > different status. > > Is this even possible? > > > > > > I've been playing with different multicast addresses and > > xml addresses and haven't had much success. Has anyone ever tried > > this before? > > > > Yes, this is possible, I'm currently running ganglia like this. I > > have a different gmond.conf for each subcluster. > > The only thing that changes between the gmond.conf's is the > "name" and > > "mcast_channel", all other settings are the same. > > As for the gmetad.conf, here's the crucial part of it: > > > > data_source "Head Cluster" 300 10.10.1.19 data_source "Storage" 300 > > 10.10.1.1 data_source "Monitor" 300 localhost > > > > > > > > > > ------------------------------------------------------- > > This SF.Net email is sponsored by: > > Sybase ASE Linux Express Edition - download now for FREE LinuxWorld > > Reader's Choice Award Winner for best database on Linux. > > http://ads.osdn.com/?ad_idU88&alloc_id065&op=ick > > _______________________________________________ > > Ganglia-general mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/ganglia-general > > > > > >
